Oil-burning apparatus



' April 24,1928. 1,667,042

J. W. LOGAN OIL BURNING APPARATUS Filed June 24. 1926 2 Sheets-Sheet 1 April 24, 1928. 1,667,042

' J. W. LOGAN OIL BURNING APPARATUS Filed June 24. 1926 2 Shea ts-Sheet '2 ew L J MEETS r/ames WLpjcZ/Z .E 'AQS Patented Apr. 19 28.

(1,661,042) UNITED STAT S? PATENT OFFICE.

JAMES W. LOGAN' OI CHICAGO,

CORPORATION, OF NEW YORK,

ILLINOIS, assrenoa-ro THE mom on.- was n.

Y., A CORPORATION 01' NEVADA- ore-BURNING arrana-ru's.

Application iledJ'une 2-1,

unusual stresses are created, which are detrimental to and soon impair the operation of the device.

.Further, attempts have heretofore been made .to remove the combustion zone from the fuel feeding; instrumentalities to avoid the necessity of to the injurious thermal'efiects, but due to features of construction and arrangement, such attempts have not heretofore been successful.

One object of the present invention isto simplify and improve devices .of the character mentioned.

Another object-is to. provide improved means whereby the speedof rotation of'the moving parts may be materially reduced vilithout impairing the. operating eficienc'y t ereo 'A. further ing ;means having de ecting means .associated with the end thereof to effectively -refrom theffollowingdescription ofian 1 -move the zone of combustion from the-fuel feeding'means and associated parts. Other objects and advantages will appear trative embodiment of the present invention.

In the accompanying drawings, which illustrate a preferred embodiment of this in-. vention' and in which similar reference,

numerals "refer tosimilar features in the different views Figure'lsis an elevational view of im 11; ed-burner shown in connectionwithenace partly. broken away.

F g 2 is a top plan view-of that... with the fire brick omitted. r

' Figure 3- is a side elevational view." of the burner with parts broken away.

Figure 4 is an nlarged upon the line IV-IY-iof Figure "3,

" Figure .5 is an enlarged -sectionalfview upon the line' V -Y of Figurelk- P sub ecting theparts thereof the construction I of 4) is suspended in the container by means of object is rovide fuel convey-- lus- - ugal fuel -I, andthe sam jsjust abovethe bearing socket 7. 'Abovethe sectional view A fan 10- seen we, semi ll'o. liaise.

Figure '6 is an enlarged sectional view. .upon the line V I-VI of Figure 4.;

In the illustrated embodiment of a. pan or basin l'n'iounted upon legs 2 in a u this in-1 vention, there is shown'a burnercompnslng' furnace, the wallof. which is shown broken away and WhlCh maybe termed a combus:

tion chamber. The pan 1 is provided with spaced concentric flanges 1. and 1", the '.lat-. ter of which extends above thefo are positioned over the pan 1 and support 3. These fire bricks are preferably posit1oned in rmer. "A.-

of. Suitable fire brick 4 (Figures 1 and '5) l I spaced relation as. shown in Figure 5' to al-' low the liquid fuel. to seep therethrou 'h.

The liquidfuel that seeps through the re 7.

brick will find its way to the pan 1, mos of it being drained therein by the dished shaped flange 3.

' A cylindricalwell or container. 5 is su ported -u on a pedestal 6 centrally below t e pan 1. cylindrical bearing box. 7 (Figure any annular flange 7 engaging the top there of. This bearingis spaced from the. wall of Axh'llow centrifugal. fu l feeding m emher or conveyor 8 isjournalled atits lower j end inthe bearing. boxor socket 7. Themember Sextends through the. neck formed by-the flange 1 of the pan or basin 1, and the interior thereof is in conical form and diverges upwardly, pr'eferablyhaving aconvergence suflicient to. effect. a :marked fuel" elevation atcomparatively slow speeds. The lower bearing'portion of the centriffeedi'ng member is externally cy-. lindricalto rovided with a pulley 9 pulley f9, themember '8 is in the form'of a conical to the interior. surface of the fuel feeding member." The lower end of the-member 8 isopen .for communication withthe-oil con: tainer -5 for admittiigthe 'hquidfuel.

' upon the upper end fit inthe hearing box or socket hell, It;'i's, however immaterial-as to th exterior form ,of the member 8 providedthat. the interior thereof is of-conical '.form.' In the use-of the word .oonical, it should be understood as merely applied of the fuel ffeeding niember 8. This fan is-provided with a hub 11 that surroundsv the member 8, deflecting means in this instance a top plate 12', and straight blades 13 extending radially from the hub 11. and

joined to the top plate 12 so that the air is directedradially thereof. The fan is located is ordinarily sufficient to prevent the fuel just above the fire brick as shown in Figure 1. The member 8 is provided with a depressed. surface or groove 14 in a longitudinal plane through the fan and one or more fuel feeding nozzles 15 extend from the groove 14 through the space between a pair of fan blades. v a

A rod 16 is threaded or secured in the bottom of the liquid fuel container 5 and extends centrally through the fuel feeding member 8 and through the top 12 of the fan. A stationary heat-absorbing plate 17 is supported upon the upper endof the rod 16 for shielding the fan and conveyor tube 8 from interior heat.

A liquid fuel supply pipe 18 extends into the oil container 5 for supplying liquid fuel thereto, beneath the bearing 7. A basin drain pipe 19 extends from the basin 1 to the upper portion of the container 5 and com municates with the space between the container 5 and bearing 7 for'returning any u'nconsumed oil to the container. A pipe 20 extends from the pipe 19 to a trip bucket of any usual construction (not shown) housed in casing 21. (Figure 2).

The liquid fuel supply pipe 18 extends to a, suitable pump 22 which communicates by means of a. pipe 23 with a strainer 24 to which the fuel is fed from a source of supply.

7 by a pipe 25.

- to the nozzles 15, the top plate 12 of the fan will act as a'stop' for the rising fuel which willbe dashed by centrifugal force The pump 22 is driven by a motor 26 having a shaft 27which is suitably connected to the pump.= A pulley 28 upon themotor shaft is connected by a. belt 29 with the aforementioned pulley 9 on the liquid fuel feeding tube or member. A belt tightening device 30 of usual construction may be applied-to thebelt 29. I

I No particular motor control has been illustrated beyond a. switch box 31 on the trip bucket casing 21, which may be used for starting and stopping the motor.

The operation of the burner will now be set forth. When the motor is started, liquid fuel will be pumped intothe container 5, and the conical fuel feeding tube 8 will elevate the fuel through centrifugal force into the groove 14 and through the nozzles '15 which rotate with the conical member 8.

I The fanlO that also rotates with the conical fuel feeding tube 'will create a current of air that will carry the fuel some distance from the fan before it. comes into the ignition or combustion zone which on account of I from flowing through the pipe 20 to the trip bucket. However, if the burner should accidently go out, the fuel that is discharged by the rotary conveyor would return through the pipe 19 and when the container 7. be-

comes sufliciently full, the fuel would flow through the pipe 20 to the trip bucket to stop the motor as is well known in the art.

I am aware that many changes may be made, and numerous details of construction may be varied through awide range without departing from the principles of this invention, and I therefore dojnot purpose limiting the patent granted hereon, otherwise than necessitated by the prior art.

I claim as my invention:

1. In a liquid fuel burner, the combination with a combustion chamber, of a centrifugal member including a relatively long conical bore of sufficient divergence to effect fuel elevation at comparatively low speeds, a guide rod extending through said bore and about -which said member is rotatable and fuel projecting means associated with the discharge end of said conical bore.

2. In a liquid fuel burner, the combination with a combustion chamber, of a centrifugal fuel conveyer operable at relatively low speeds comprisinga tube having. a conical bore, the largest end of said bore comprising a discharge orifice, a plurality of radial nozzles connected to the discharge end of said tube, a deflector plate associated with said end of said tube for deflecting the fuel striking it into said nozzles, a guide rod extending through said bore and connected at one end to said plate, means for rotating said tube about said rod and means for delivering liquid fuel to said-conical bore includ-- ing acup-like chamber serving as a mounting for the other ends of said tube and rod. 1

.3. In a' liquid fuel burner, the combiner tion with a combustion chamber, of. a cenc trifugal fuel conveyer comprising a tube having a conical bore,the largest end of said bore comprising a discharge I fice, a plufleeting the fuelstriking the same into said nozzles, a rod, extending 'through' 'said bore and said deflector plate, a heatabsorbing member securedto onefend of said rod for protecting said deflector'pla te' from the heat in the combustion chamber, means for rotating said tube and means for delivering liq- -uid fuel to said conical bore including a cupand means for to said end of said tube for deflecting the said conical bore and having its other end connected to said chamber.

' 5. In a liquid fuel burner, the combination. with a combustion chamber, of'a centrifugal fuel conveyer comprising a tube having a conical bore, the largest end of said bore comprising a discharge orifice, a plurality of radial nozzles associated with the discharge end of said tube, a deflector plate associated with said nozzles for deflecting the fuel striking the same into sai nozzles, a rod extending through said bore and said deflector plate, means for rotating said tube about said rod, and means for delivering liquid fuel to the tube at its lower like chamber serving as a mounting for the other end of said tube, said rod extending clear through said conical bore and having its other end connected to said chamber.

4. In a liquid fuel burner, the combination with a combustion chamber, of acentrifugal fuel conveyer comprising a tube having a conical bore, the largest end of said bore comprising a discharge orifice, 'a plurality of radial nozzles connected to the discharge end of said tube, a deflector plate connected fuel striking the same into said nozzles, a rod extending through said bore and 'said deflector plate, means for rotating said tube,

delivering liquid fuel to said end. conical bore including a cup-like chamber In testimony whereof I have hereunto serving asa mounting for the other end of subscribed my name.

said tube, said rod extending clear through JAMES W. LOGAN. 

